diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/drm/drm_modeset_helper_vtables.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/include/drm/drm_modeset_helper_vtables.h b/include/drm/drm_modeset_helper_vtables.h index 6c8d3da..10e449c 100644 --- a/include/drm/drm_modeset_helper_vtables.h +++ b/include/drm/drm_modeset_helper_vtables.h @@ -266,6 +266,8 @@ struct drm_crtc_helper_funcs { * disable anything at the CRTC level. To ensure that runtime PM * handling (using either DPMS or the new "ACTIVE" property) works * @disable must be the inverse of @enable for atomic drivers. + * Atomic drivers should consider to use @atomic_disable instead of + * this one. * * NOTE: * @@ -391,6 +393,28 @@ struct drm_crtc_helper_funcs { */ void (*atomic_flush)(struct drm_crtc *crtc, struct drm_crtc_state *old_crtc_state); + + /** + * @atomic_disable: + * + * This callback should be used to disable the CRTC. With the atomic + * drivers it is called after all encoders connected to this CRTC have + * been shut off already using their own ->disable hook. If that + * sequence is too simple drivers can just add their own hooks and call + * it from this CRTC callback here by looping over all encoders + * connected to it using for_each_encoder_on_crtc(). + * + * This hook is used only by atomic helpers. Atomic drivers don't + * need to implement it if there's no need to disable anything at the + * CRTC level. + * + * Comparing to @disable, this one provides the additional input + * parameter @old_crtc_state which could be used to access the old + * state. Atomic drivers should consider to use this one instead + * of @disable. + */ + void (*atomic_disable)(struct drm_crtc *crtc, + struct drm_crtc_state *old_crtc_state); }; /** |